N is for naevus (birthmark)

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This game is weird. Jace sat in the library of the Institute, in a circle with Isabelle, Magnus, Alec, and Cassidee. The little brown-eyed beauty had insisted on everyone playing the game, appropriately named Truth, since you weren't allowed to lie.

"Hmm… Cassidee, have you ever gotten in a fight?" Magnus asked. Of course not, Jace snorted in his mind. Cassidee's cheeks reddened.

"Yeah, I have." Jace's eyes grew larger as he stared at his girlfriend in disbelief. "I was playing soccer, and this girl started cussing at me, so I punched her and we started fighting." Everyone started laughing. "Well, she was being a bad sport," Cassidee defended herself. "Alec, would you ever get colored contacts?"

"Actually, yeah, I would. I'd get darker blue. Jace, have you ever worn a color brighter than black or gray?" Jace chuckled.

"I wore a lilac-colored shirt once." He shot a pointed look at Cassidee, who smiled sheepishly. "I had to borrow it after someone ruined mine with a Wild-Watermelon sno-cone." Isabelle giggled, elbowing her friend playfully.

"Did he change shirts in front of you? I bet that was your plan all along."

"Oh, yes, indeed," Cassidee teased.

"Cass," Jace said, calling everyone's attention to him, awaiting his question. "Do you have any scars or birthmarks?" Cassidee nodded, unfolding her legs and sticking them straight out.

"I cut my ankles all the time when I shave, so they're all scarred. This big purple scar is from the time I fell off a horse and gashed my knee on a rock. And…" Here she paused and pulled down the collar of her shirt, revealing a darker patch of skin directly below her collarbone. "This is my birthmark."

"It looks like a heart," Isabelle said, leaning closer to see.

"No, it's shaped like a fish," Magnus corrected.

"I think it's more like a 'C'," Alec pointed out, tracing the letter with a light finger. Cassidee nodded.

"You're all wrong," Jace stated, crawling across the circle and using his index finger to follow the birthmark. "It's obviously a 'J', for yours truly." Cassidee's face lit up and she examined her mark as best she could.

"It does look like a 'J'!" She cheered, excited by her discovery.

"I can change it to a different letter, so you don't have that distasteful initial on your body," Magnus offered. Jace's eyes turned murderous, but Cassidee hugged him around his waist.

"I think it's the best birthmark ever," She assured him with a kiss to his jawbone.